gaussSim: gaussian similarity c(x,y) = exp(-ln(2)*z*z/(s*s)) where z=x-y, and s is the value of attribute
similarityScale (required in this case) in the ClusteringField
delta: c(x,y) = 0 if x=y, 1 else
equal: c(x,y) = 1 if x=y, 0 else
table: c(x,y) = lookup in similarity matrix
Linear Supertypes
Enumeration, Serializable, Serializable, AnyRef, Any